Q: Boot camp repaired but window crashed after creating new partition
i'm using mac air mid 2011. ( OS X El Capitan version 10.11).
I set up Boot Camp to dual-boot Windows on my MacBook Air. Everything was fine. But until recently after I made another partition. I wasn't aware that this would affect my Windows partition as I thought it was completely different.
When I boot up, there is no option to boot with Windows. But when I boot the Mac and select Startup Disk, it shows Boot Camp is still there and all my files etc are still there.
Eventuall i found a solution in apple support and fixed this problem. But the next problem existing is, i can't access to my window at all. When the boot option i choose window, it will come out with black screen and not running at all. Need help.
Model Name: MacBook Air
Model Identifi
Processor Name: Int
Processor Speez
MacBook Air, OS X El Capitan (10.11)
Posted on Oct 20, 2015 12:40 AM
You have a non-standard partitions (5 partitions). It can be corrected, but it is fragile and later Software Updates can still cause issues. You will need GPT Fdisk (http://sourceforge.net/projects/gptfdisk/) . The following steps are non-standard and should not be used on standard configurations. You will lose visibility to OSX from Windows.
Rebuild MBR to match the new GPT information thus resetting the Hybrid MBR. Use defaults for other questions (like partition codes). The only values that need modifications are the Boot flags and step 10. Accept all other defaults that Gdisk offers. Please see the sample Q&A as an example. These steps can be repeated if you make a mistake before you get to Step 12, otherwise start from Step 1 for these steps. Step 6 has numbers which are typed with a space between the numbers. Please see the sample Q&A before you execute these steps.
- Sudo gdisk /dev/rdisk0
- P (Print list of parts)
- R (Recover)
- O (print current Hybrid MBR)
- H (chooses Hybrid)
- Partitions numbers to be hybridized: 3 4 5
- Y (Good for GRUB question)
- N (part 2 boot flag)
- N (part 3 boot flag)
- Y (part 4 boot flag make NTFS bootable partition)
- O (print current Hybrid MBR)
- W (Write the new MBR)
- Y (Yes! write the new MBR)
- Reboot
Here is sample Q&A for this section. Please notice the Press Enter/Return.
Place EFI GPT (0xEE) partition first in MBR (good for GRUB)? (Y/N): Y
Creating entry for GPT partition #3 (MBR partition #2)
Enter an MBR hex code (default AF): Press Enter/Return
Set the bootable flag? (Y/N): N
Creating entry for GPT partition #4 (MBR partition #3)
Enter an MBR hex code (default AB): Press Enter/Return
Set the bootable flag? (Y/N): N
Creating entry for GPT partition #5 (MBR partition #4)
Enter an MBR hex code (default 07): Press Enter/Return
Set the bootable flag? (Y/N): Y
Test 1 - Does Bootcamp Volume show up in Finder?
Test 2 - Can you see files in Bootcamp Volume?
Test 3 - Can you select Bootcamp in System Preferences -> Startup Disk?
Test 4 - If Test 3 is successful, select Bootcamp and Click Restart.
Posted on Oct 21, 2015 7:13 AM